Dysselsdorp climate — normals and trends
Dysselsdorp (South Africa) has a cold semi-arid climate (BSk) under the Köppen-Geiger classification. Its mean annual temperature is 15.6 °C and it receives 390 mm of precipitation per year.
These figures are normals computed over 86 complete calendar years, from 1940 to 2025, using ERA5 reanalysis data from the Copernicus programme.
The warmest month is January (20.9 °C on average) and the coldest is July (9.8 °C). Rainfall peaks in March.
Dysselsdorp averages 5 frost days, 51 hot days (≥ 30 °C) and 79 rainy days per year.
Dysselsdorp has warmed by +2.2 °C between 1940 and 2025, or +0.26 °C per decade. This trend is statistically significant.
The number of frost days there went from about 7 to 3 per year over the period.
The hottest day of the period reached 41.9 °C (on 9 February 2010) and the coldest -4.2 °C (on 13 June 1944).
Data from ERA5 reanalysis (Copernicus Climate Change Service), redistributed under a CC-BY 4.0 licence. Normals are recomputed whenever the archive is updated.
Climate normals · ERA5
DysselsdorpWestern Cape
- coords
- -33.58°, 22.44°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
15.6°C
Average daily high
22.9°C
Average daily low
9.9°C
Annual rainfall
390mm
Sunshine / day
10.6h
Mean relative humidity
65%
Average peak wind
15.9km/h
Seasonal range
11.1°C
Frost days (< 0 °C)
5 d/yr
Hot days (≥ 30 °C)
51 d/yr
Rainy days (≥ 1 mm)
79 d/yr
Annual snowfall
0.4 cm
Average feels-like high
21.6 °C
Average feels-like low
8.4 °C
Average peak gust
37.3 km/h
Tropical nights (≥ 20 °C)
3 d/yr
Solar radiation
19.2 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.2 °C
since 1940
+0.3 °C per decade · r² = 0.67 · p = < 0.001
Trend fitted by linear regression (ordinary least squares) on annual means. A trend is shown only when it is statistically significant (p < 0.05).
A climograph overlays rainfall (bars) and temperature (line): the standard reading in climatology, where you can see at a glance whether the warm season is also the dry one.
Records for the period
Hottest day
41.9 °C
9 February 2010
Coldest day
-4.2 °C
13 June 1944
Wettest day
100 mm
11 March 1941
Windiest day
49.5 km/h
2 December 1943
Strongest gust
100.1 km/h
22 February 1944
Hottest feels-like
42.8 °C
2 February 1990
Coldest feels-like
-8.5 °C
13 June 1944
Snowiest day
3.0 cm
12 June 1945
Sunniest day
14.2 h
29 December 2025
Normals computed over complete calendar years 1940–2025.
A specific year
Pick a year and see how it compares to normal — warmer, drier or more extreme than usual?
Across the whole year
Month by month
| High | vs. normal | Precipitation | vs. normal | |
|---|---|---|---|---|
| Jan | 30.2 °C | +1.5 °C | 17 mm | -12 mm |
| Feb | 29.1 °C | +0.8 °C | 20 mm | -15 mm |
| Mar | 28.8 °C | +2.1 °C | 36 mm | -4 mm |
| Apr | 24.0 °C | +0.8 °C | 54 mm | +16 mm |
| May | 22.1 °C | +2.0 °C | 15 mm | -14 mm |
| Jun | 17.7 °C | +0.5 °C | 40 mm | +14 mm |
| Jul | 17.1 °C | +0.2 °C | 21 mm | -4 mm |
| Aug | 19.1 °C | +1.0 °C | 12 mm | -19 mm |
| Sep | 22.8 °C | +2.4 °C | 10 mm | -20 mm |
| Oct | 25.3 °C | +2.5 °C | 23 mm | -17 mm |
| Nov | 28.3 °C | +3.3 °C | 18 mm | -21 mm |
| Dec | 30.3 °C | +3.0 °C | 16 mm | -13 mm |
The year's extremes
What was the weather like that day?
Your birthday, a wedding, a memorable trip: discover the actual weather for any date since 1940.
Frequently asked questions
What is the climate of Dysselsdorp?
Dysselsdorp has a cold semi-arid climate (Köppen BSk). Over 1940-2025, the average annual temperature is 15.6 °C and it receives 390 mm of precipitation per year.
What is the hottest day ever recorded in Dysselsdorp?
The hottest day measured in Dysselsdorp between 1940 and 2025 was 9 February 2010, reaching 41.9 °C.
What is the coldest day in Dysselsdorp?
The coldest day measured in Dysselsdorp between 1940 and 2025 was 13 June 1944, at -4.2 °C.
Does it snow in Dysselsdorp?
Almost never: Dysselsdorp sees virtually no snow, with about 5 frost days per year.
Has the climate of Dysselsdorp warmed?
Yes: Dysselsdorp warmed by +2.2 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Dysselsdorp?
The wettest day measured in Dysselsdorp between 1940 and 2025 was 11 March 1941, with 100 mm of rain in 24 hours.
What was the windiest day in Dysselsdorp?
The windiest day measured in Dysselsdorp between 1940 and 2025 was 2 December 1943, with winds reaching 49.5 km/h.
What is the warmest month in Dysselsdorp?
The warmest month in Dysselsdorp is January (20.9 °C on average); the coldest is July (9.8 °C).
How much does it rain in Dysselsdorp?
Dysselsdorp receives on average 390 mm of precipitation per year, spread over about 79 rainy days.
Is it sunny in Dysselsdorp?
Dysselsdorp gets on average 10.6 hours of sunshine per day, roughly 3,869 hours per year over 1940-2025.
What is the biggest single-day snowfall in Dysselsdorp?
The heaviest 24-hour snowfall measured in Dysselsdorp between 1940 and 2025 was 12 June 1945, with 3.0 cm.
Are there tropical nights in Dysselsdorp?
Yes: Dysselsdorp has on average 3 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Dysselsdorp?
In Dysselsdorp, between 1940 and 2025, the highest apparent temperature reached 42.8 °C on 2 February 1990, and the lowest was -8.5 °C on 13 June 1944.
Compare Dysselsdorp with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Dysselsdorp